sysfs: skip bin_buffer->buffer while reading

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After b31ca3f5df ("sysfs: fix deadlock"), bin read() first writes
data to bb->buffer and bounces it to a transient kernel buffer which
is then copied out to userland.  The double bouncing doesn't add
anything.  Let's just use the transient buffer directly.

While at it, rename @temp to @buf for clarity.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Tejun Heo 2013-10-01 17:42:03 -04:00 • committed by Greg Kroah-Hartman

parent 13c589d5b0

commit 91270162bf

1 changed files with 8 additions and 13 deletions

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fs/sysfs/bin.c

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